Proceedings of the Ohio State .-Icadeiiiy of Science 31 



Growing on an old log, also on the ground in the woods. 

 Coll. Marian Richey, Alary Hirn, Freda M. Bachman, April 

 25, 1908. 



Subgenus III. Pustularia. 



Apothecia large, solitary or caespitose, immersed or above 

 the substratum, spherical but finally expanded, exterior scaly or 

 warty, base often narrowed and rootlike. Paraphyses branched 

 at the base, septate, often enlarged upward and colored. Asci 

 cylindrical, ends blunt. Spores elliptical or oval, i celled, with 

 or without 2 small oil globules, smooth, hyaline. 



KEY TO SPECIES. 



a — Spores 12-15 mic. long stevensoniana 



a — Spores 20-22 mic. long vesiculosa 



-\-Pe::i::a stevensoniana Ellis; Rhem Ascom. Lojk. 3, 1882. 



Apothecia solitary or caespitose, 3-4 cm. broad, interior pale 

 brownish, exterior brownish or more often whitish and min- 

 utely warty or scaly, edge of the cup often remaining somewhat 

 involute ; fleshy-waxy, brittle, shortly stipitate. Plymenium hya- 

 line, other parts of the cup somewhat brownish. Paraphyses 

 slender, very slightly enlarged upward, granular. Asci cylin- 

 drical. Spores oval, smooth, hyaline, 12-15 mic. long and 10-12 

 mic. wide. 



Found growing on old logs. 



Coll. Bruce Fink, May 21, 1908. Freda M. Bachman, June 

 30, 1908. 

 Peziza z'esiculosa Bull. Hist. Champ. Fr. pi. 457. f. i. 1787-1795. 



Apothecia solitary or caespitose, 1-3 cm. broad, interior light 

 brown, exterior covered with minute light brown scales, cup- 

 shaped or somewhat irregular, edge crenate or incised. Hyme- 

 nium yellowish, hypothecium and central part paler and com- 

 posed of large rounded cells, exterior darker. Paraphyses fili- 

 form, few, somewhat larger near the ends. Asci cylindrical. 

 Spores oval, smooth, 20-22 mic. long and 8-10 mic. wide. 



